A friend has an Alfa with CAT engine. He has a pipe attached to the slobber tube and ran across to the passenger side of the coach to vent the slobber tube exhaust to the side of the coach. You can see a gentle stream of blue smoke emit from the pipe.
That would be directed towards the radiator without the extension pipe.
2000 Winnebago Ultimate Freedom USQ40JD
, ISC 8.3 Cummins 350, Spartan MM Chassis. USA 1SG, retired;PPA,Good Sam Life member."We the people are the rightful masters of both the Congress and the Courts - not to overthrow the Constitution but to overthrow men who pervert theConstitution. "Abraham Lincoln"